| Porsgrunn to Plattsburgh (New York) | 3,432.73 mi (5,524.45 km) |
| Porsgrunn to Pleasant Grove (Utah) | 4,795.05 mi (7,716.89 km) |
| Porsgrunn to Pleasant Hill (California) | 5,184.87 mi (8,344.25 km) |
| Porsgrunn to Pleasant Hill (Iowa) | 4,227.71 mi (6,803.84 km) |
| Porsgrunn to Pleasant Prairie (Wisconsin) | 4,006.75 mi (6,448.24 km) |
| Porsgrunn to Pleasant View (Utah) | 4,743.22 mi (7,633.47 km) |
| Porsgrunn to Pleasanton (California) | 5,198.89 mi (8,366.80 km) |
| Porsgrunn to Pleasanton (Texas) | 5,114.36 mi (8,230.77 km) |
| Porsgrunn to Pleasantville (New Jersey) | 3,747.01 mi (6,030.22 km) |
| Porsgrunn to Plover (Wisconsin) | 3,949.66 mi (6,356.36 km) |
| Porsgrunn to Plum (Pennsylvania) | 3,860.26 mi (6,212.49 km) |
| Porsgrunn to Plymouth (Indiana) | 4,023.41 mi (6,475.05 km) |
| Porsgrunn to Plymouth (Minnesota) | 4,033.10 mi (6,490.65 km) |
| Porsgrunn to Pocatello (Idaho) | 4,659.98 mi (7,499.52 km) |
| Porsgrunn to Poinciana (Florida) | 4,610.47 mi (7,419.84 km) |
